Structure: The heating furnace body is welded by section steel and steel plate. The two ends of the heating furnace body are equipped with pneumatic door made of heat-resistant stainless steel. Heating furnace body is of vertical lifting type, equipped with a set of electric lifting device for furnace maintenance. Using high quality aluminium silicate insulating layer in the furnace through scientific sequencing and six-sided polishing technology, the thermal conductivity and heat storage capacity index are better, which can greatly improve the heat utilization efficiency and keep relatively low temperature outside the furnace. Space display points are set in the furnace. |
Transmission and convey: The heating furnace body is driven by circular belt and arranged orthogonally, so that the system runs smoothly and reliably. The use of high quality fused quartz ceramic roller has good resistance to temperature sudden change, allowing rapid heating. Glass is oscillating on the roller in the furnace. The glass's travel and cycle are automatically adjusted by the length measuring device of the control system to track the glass's length so as to ensure that the heat in the furnace is evenly absorbed by the glass. |
Heating elements & temperature control: The heating furnace is equipped with heating elements and temperature measuring elements. They are divided into a certain number of regions. The temperature of each region is controlled by computer separately. It is possible to customize different tempering processes. It is the most flexible control mode in this field. The heating element made of heat-resistant alloy is installed on the high temperature resistant bracket, which can prolong the service life and be easily replaced. Heating element: 0Cr21A6Nb- the heating elements shall be arranged without gap. Electric heating control area: 360pcs each; heating element has strong oxidation resistance, good thermal stability and long service life.
- the upper and lower furnace bodies shall be designed with the same furnace temperature, and the surface load of heating element shall be reasonable to ensure that the upper and lower furnace bodies can synchronize the heat absorption of glass and better ensure the quality; Spray hardener for many times to improve the heat preservation effect of furnace body and reduce the thermal conductivity;
- the rear end of the upper furnace body is heated by convection fans (4 sets) to improve the glass surface quality;
- intelligent PID heating control is adopted, and the control accuracy is less than ± 3 degrees at constant temperature; Heating three-stage adjustment, which can automatically compensate the power according to the glass thickness, glass loading, and optimize the furnace temperature control accuracy; Thermal-couple 4mm to improve the response speed of temperature control.
- the heating output adopts three-phase electricity and in-phase polling heating to optimize the maximum power of the tempering furnace; The independent over temperature protection system can effectively prevent the over temperature of furnace temperature and furnace chamber, and can automatically heat the circuit breaker in sections. The color scale displays the temperature, and visually displays the deviation between the set temperature and the actual temperature.
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